Student Services & Classroom Addition. A. This Section includes the following domestic water piping specialties:

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1 SECTION DOMESTIC WATER PIPING SPECIALTIES PART 1 - GENERAL 1.1 SUMMARY A. This Section includes the following domestic water piping specialties: 1. Vacuum breakers. 2. Backflow preventers. 3. Water pressure-reducing valves. 4. Balancing valves. 5. Temperature-actuated water mixing valves. 6. Strainers. 7. Hose bibbs. 8. Wall hydrants. 9. Drain valves. 10. Water hammer arresters. 11. Trap-seal primer valves. B. See Division 22 Section "Domestic Water Piping" for water meters. 1.2 PERFORMANCE REQUIREMENTS A. Minimum Working Pressure for Domestic Water Piping Specialties: 125 psig (860 kpa), unless otherwise indicated. 1.3 SUBMITTALS A. Product Data: For each type of product indicated. B. Field quality-control test reports. C. Operation and maintenance data. 1.4 QUALITY ASSURANCE A. NSF Compliance: 1. Comply with NSF 61, "Drinking Water System Components - Health Effects; Sections 1 through 9." DOMESTIC WATER PIPING SPECIALTIES

2 PART 2 - PRODUCTS 2.1 VACUUM BREAKERS A. Pipe-Applied, Atmospheric-Type Vacuum Breakers : a. Ames Co. b. Cash Acme. c. Conbraco Industries, Inc. d. FEBCO; SPX Valves & Controls. e. Rain Bird Corporation. f. Toro Company (The); Irrigation Div. g. Watts Industries, Inc.; Water Products Div. h. Zurn Plumbing Products Group; Wilkins Div. 2. Standard: ASSE Size: NPS 1/4 to NPS 3 (DN 8 to DN 80), as required to match connected piping. 4. Body: Bronze. 5. Inlet and Outlet Connections: Threaded. 6. Finish: Rough bronze. B. Hose-Connection Vacuum Breakers: a. Arrowhead Brass Products, Inc. b. Cash Acme. c. Conbraco Industries, Inc. d. Legend Valve. e. MIFAB, Inc. f. Prier Products, Inc. g. Watts Industries, Inc.; Water Products Div. h. Woodford Manufacturing Company. i. Zurn Plumbing Products Group; Light Commercial Operation. j. Zurn Plumbing Products Group; Wilkins Div. 2. Standard: ASSE Body: Bronze, nonremovable, with manual drain. 4. Outlet Connection: Garden-hose threaded complying with ASME B Finish: Chrome or nickel plated. DOMESTIC WATER PIPING SPECIALTIES

3 2.2 BACKFLOW PREVENTERS A. Reduced-Pressure-Principle Backflow Preventers: a. Ames Co. b. Conbraco Industries, Inc. c. FEBCO; SPX Valves & Controls. d. Flomatic Corporation. e. Watts Industries, Inc.; Water Products Div. f. Zurn Plumbing Products Group; Wilkins Div. 2. Standard: ASSE Operation: Continuous-pressure applications. 4. Pressure Loss: 12 psig (83 kpa) maximum, through middle 1/3 of flow range. 5. Size: 4-inches. 6. Design Flow Rate: 390 gpm 7. Pressure Loss at Design Flow Rate: 8 psig (kpa)> for NPS 2-1/2 (DN 65) and larger. 8. Body: ductile-iron with interior lining complying with AWWA C550 or that is FDA approved for NPS 2-1/2 (DN 65) and larger. 9. End Connections: Threaded for NPS 2 (DN 50) and smaller; flanged for NPS 2-1/2 (DN 65) and larger. 10. Configuration: Designed for horizontal, straight through flow. 11. Accessories: a. Valves: outside screw and yoke gate-type with flanged ends on inlet and outlet of NPS 2-1/2 (DN 65) and larger. b. Air-Gap Fitting: ASME A , matching backflow-preventer connection. 2.3 WATER PRESSURE-REDUCING VALVES A. Water Regulators: a. Cash Acme. b. Conbraco Industries, Inc. c. Honeywell Water Controls. d. Watts Industries, Inc.; Water Products Div. e. Zurn Plumbing Products Group; Wilkins Div. 2. Standard: ASSE DOMESTIC WATER PIPING SPECIALTIES

4 3. Pressure Rating: Initial working pressure of 150 psig (1035 kpa). 4. Size: Refer to Plans and Riser Diagram. 5. Design Flow Rate: Refer to Plans and Riser Diagram. 6. Design Inlet Pressure: Refer to Plans and Riser Diagram. 7. Design Outlet Pressure Setting: Refer to Plans & Riser diagram. 8. Body: Bronze with chrome-plated finish for NPS 2 (DN 50) and smaller; cast iron with interior lining complying with AWWA C550 or that is FDA approved for NPS 2-1/2 and NPS 3 (DN 65 and DN 80). 9. Valves for Booster Heater Water Supply: Include integral bypass. 10. End Connections: Threaded for NPS 2 (DN 50) and smaller; flanged for NPS 2-1/2 and NPS 3 (DN 65 and DN 80). 2.4 BALANCING VALVES A. Memory-Stop Balancing Valves: a. Conbraco Industries, Inc. b. Crane Co.; Crane Valve Group; Crane Valves. c. Crane Co.; Crane Valve Group; Jenkins Valves. d. Crane Co.; Crane Valve Group; Stockham Div. e. Hammond Valve. f. Milwaukee Valve Company. g. NIBCO INC. h. Red-White Valve Corp. 2. Standard: MSS SP-110 for two-piece, copper-alloy ball valves. 3. Pressure Rating: 400-psig (2760-kPa) minimum CWP. 4. Size: NPS 2 (DN 50) or smaller. 5. Body: Copper alloy. 6. Port: Standard or full port. 7. Ball: Chrome-plated brass. 8. Seats and Seals: Replaceable. 9. End Connections: Solder joint or threaded. 10. Handle: Vinyl-covered steel with memory-setting device. 2.5 TEMPERATURE-ACTUATED WATER MIXING VALVES A. Water-Temperature Limiting Devices: a. Conbraco Industries, Inc. b. Honeywell Water Controls. c. Leonard Valve Company. DOMESTIC WATER PIPING SPECIALTIES

5 d. Powers; a Watts Industries Co. e. Symmons Industries, Inc. f. Taco, Inc. g. Watts Industries, Inc.; Water Products Div. h. Zurn Plumbing Products Group; Wilkins Div. i. Holby Valve Company, Inc. 2. Standard: ASSE Pressure Rating: 125 psig (860 kpa). 4. Type: Thermostatically controlled water mixing valve. 5. Material: Bronze body with corrosion-resistant interior components. 6. Connections: Threaded union inlets and outlet. 7. Accessories: Check stops on hot- and cold-water supplies, and adjustable, temperature-control handle. 8. Tempered-Water Setting: Adjustable 110 to Valve Finish: Rough bronze. 2.6 STRAINERS FOR DOMESTIC WATER PIPING A. Y-Pattern Strainers: 1. Pressure Rating: 125 psig (860 kpa) minimum, unless otherwise indicated. 2. Body: Bronze for NPS 2 (DN 50) and smaller; cast iron with interior lining complying with AWWA C550 or FDA-approved, epoxy coating and for NPS 2-1/2 (DN 65) and larger. 3. End Connections: Threaded for NPS 2 (DN 50) and smaller; flanged for NPS 2-1/2 (DN 65) and larger. 4. Screen: Stainless steel with round perforations, unless otherwise indicated. 5. Perforation Size: a. Strainers NPS 2 (DN 50) and Smaller inch (0.84 mm). b. Strainers NPS 2-1/2 to NPS 4 (DN 65 to DN 100): inch (1.57 mm). c. Strainers NPS 5 (DN 125) and Larger: inch (3.18 mm). 6. Drain: Factory-installed, hose-end drain valve. 2.7 HOSE BIBBS A. Hose Bibbs: 1. Standard: ASME A for sediment faucets. 2. Body Material: Bronze. 3. Seat: Bronze, replaceable. 4. Supply Connections: NPS 1/2 or NPS 3/4 (DN 15 or DN 20) threaded or solder-joint inlet. 5. Outlet Connection: Garden-hose thread complying with ASME B Pressure Rating: 125 psig (860 kpa). 7. Vacuum Breaker: Integral nonremovable, drainable, hose-connection vacuum breaker complying with ASSE Finish for Equipment Rooms: Rough bronze, or chrome or nickel plated. 9. Finish for Service Areas: Rough bronze. 10. Finish for Finished Rooms: Chrome or nickel plated. 11. Operation for Equipment Rooms: Wheel handle or operating key. 12. Operation for Service Areas: Wheel handle. DOMESTIC WATER PIPING SPECIALTIES

6 13. Operation for Finished Rooms: Wheel handle. 14. Include operating key with each operating-key hose bibb. 15. Include integral wall flange with each chrome- or nickel-plated hose bibb. 2.8 WALL HYDRANTS A. Nonfreeze Wall Hydrants: a. Josam Company. b. MIFAB, Inc. c. Prier Products, Inc. d. Smith, Jay R. Mfg. Co.; Division of Smith Industries, Inc. e. Tyler Pipe; Wade Div. f. Watts Drainage Products Inc. g. Woodford Manufacturing Company. h. Zurn Plumbing Products Group; Light Commercial Operation. i. Zurn Plumbing Products Group; Specification Drainage Operation. 2. Standard: ASME A M for concealed -outlet, self-draining wall hydrants. 3. Pressure Rating: 125 psig (860 kpa). 4. Operation: Loose key. 5. Casing and Operating Rod: Of length required to match wall thickness. Include wall clamp. 6. Inlet: NPS 3/4 or NPS 1 (DN 20 or DN 25). 7. Outlet: Concealed, with integral vacuum breaker and garden-hose thread complying with ASME B Box: Deep, flush mounting with cover. 9. Box and Cover Finish: Chrome plated. 10. Operating Keys(s): Two with each wall hydrant. 2.9 RAIN VALVES A. Ball-Valve-Type, Hose-End Drain Valves: 1. Standard: MSS SP-110 for standard-port, two-piece ball valves. 2. Pressure Rating: 400-psig (2760-kPa) minimum CWP. 3. Size: NPS 3/4 (DN 20). 4. Body: Copper alloy. 5. Ball: Chrome-plated brass. 6. Seats and Seals: Replaceable. 7. Handle: Vinyl-covered steel. 8. Inlet: Threaded or solder joint. 9. Outlet: Threaded, short nipple with garden-hose thread complying with ASME B and cap with brass chain. DOMESTIC WATER PIPING SPECIALTIES

7 2.10 WATER HAMMER ARRESTERS A. Water Hammer Arresters: a. AMTROL, Inc. b. Josam Company. c. MIFAB, Inc. d. PPP Inc. e. Sioux Chief Manufacturing Company, Inc. f. Smith, Jay R. Mfg. Co.; Division of Smith Industries, Inc. g. Tyler Pipe; Wade Div. h. Watts Drainage Products Inc. i. Zurn Plumbing Products Group; Specification Drainage Operation. 2. Standard: ASSE 1010 or PDI-WH Type: Metal bellows. 4. Size: ASSE 1010, Sizes AA and A through F or PDI-WH 201, Sizes A through F. PART 3 - EXECUTION 3.1 INSTALLATION A. Refer to Division 22 Section "Common Work Results for Plumbing" for piping joining materials, joint construction, and basic installation requirements. B. Install backflow preventers in each water supply to mechanical equipment and systems and to other equipment and water systems that may be sources of contamination. Comply with authorities having jurisdiction. 1. Locate backflow preventers in same room as connected equipment or system. 2. Install drain for backflow preventers with atmospheric-vent drain connection with air-gap fitting, fixed air-gap fitting, or equivalent positive pipe separation of at least two pipe diameters in drain piping and pipe to floor drain. Locate air-gap device attached to or under backflow preventer. Simple air breaks are not acceptable for this application. 3. Do not install bypass piping around backflow preventers. C. Install water regulators with inlet and outlet shutoff valves. Install pressure gages on inlet and outlet. D. Install balancing valves in locations where they can easily be adjusted. E. Install temperature-actuated water mixing valves with check stops or shutoff valves on inlets and with shutoff valve on outlet. 1. Install thermometers and water regulators if specified. 2. Install cabinet-type units recessed in or surface mounted on wall as specified. DOMESTIC WATER PIPING SPECIALTIES

8 F. Install Y-pattern strainers for water on supply side of each control valve, water pressure-reducing valve, solenoid valve, and pump. G. Install water hammer arresters in water piping according to PDI-WH 201. H. Install supply-type, trap-seal primer valves with outlet piping pitched down toward drain trap a minimum of 1 percent, and connect to floor-drain body, trap, or inlet fitting. Adjust valve for proper flow. I. Piping installation requirements are specified in other Division 22 Sections. Drawings indicate general arrangement of piping and specialties. J. Equipment Nameplates and Signs: Install engraved plastic-laminate equipment nameplate or sign on or near each of 1. Reduced-pressure-principle backflow preventers. 2. Double-check backflow-prevention assemblies. 3. Water pressure-reducing valves. 4. Primary, thermostatic, water mixing valves. Distinguish among multiple units, inform operator of operational requirements, indicate safety and emergency precautions, and warn of hazards and improper operations, in addition to identifying unit. Nameplates and signs are specified in Division 22 Section "Identification for Plumbing Piping and Equipment." 3.2 FIELD QUALITY CONTROL A. Perform the following tests and prepare test reports: 1. Test each reduced-pressure-principle backflow preventer and double-check backflow-prevention assembly according to authorities having jurisdiction and the device's reference standard. B. Remove and replace malfunctioning domestic water piping specialties and retest as specified above. 3.3 ADJUSTING A. Set field-adjustable pressure set points of water pressure-reducing valves. B. Set field-adjustable flow of balancing valves. C. Set field-adjustable temperature set points of temperature-actuated water mixing valves. END OF SECTION DOMESTIC WATER PIPING SPECIALTIES